In-gloriousness refers to a state of being shameful, dishonorable or ignominious. Its antonyms, on the other hand, are words that describe honor, prestige or respectability. Gloriousness, honor, dignity, nobility, and renown are some of the antonyms for in-gloriousness. Gloriousness suggests great beauty, splendor or magnificence, while honor denotes a sense of moral or ethical principle. Dignity, on the other hand, refers to the state of being worthy or respected, while nobility suggests a sense of personal dignity or honorable behavior. Lastly, renown suggests being widely known or famous for one's accomplishments, which is the ultimate opposite of in-gloriousness.